<template>
  <div class="auth-page">
    <div class="container page">
      <div class="row">
        <div class="col-md-6 offset-md-3 col-xs-12">
          <h1 class="text-xs-center">
            {{ isLogin?'Sign in':'Sign up' }}
          </h1>
          <p class="text-xs-center">
            <nuxt-link v-if="isLogin" to="/register">
              Need an account
            </nuxt-link>
            <nuxt-link v-else to="/login">
              Have an account
            </nuxt-link>
          </p>

          <ul class="error-messages">
            <template v-for="(messages,field) in errors">
              <li v-for="(message,index) in messages" :key="index">
                {{ field }} {{ message }}
              </li>
            </template>
          </ul>

          <form @submit.prevent="onSubmit">
            <fieldset v-if="!isLogin" class="form-group">
              <input v-model="user.username" class="form-control form-control-lg" type="text" placeholder="Your Name">
            </fieldset>
            <fieldset class="form-group">
              <input v-model="user.email" class="form-control form-control-lg" type="text" placeholder="Email">
            </fieldset>
            <fieldset class="form-group">
              <input v-model="user.password" class="form-control form-control-lg" type="password" placeholder="Password">
            </fieldset>
            <button class="btn btn-lg btn-primary pull-xs-right">
              {{ isLogin?'Sign in':'Sign up' }}
            </button>
          </form>
        </div>
      </div>
    </div>
  </div>
</template>

<script lang="ts">
import Vue from 'vue'
import { login, register } from '@/api/user'
const Cookie = process.client ? require('js-cookie') : undefined

export default Vue.extend({
  middleware: 'noAuthenticated',
  data () {
    return {
      user: {
        username: '',
        email: '',
        password: ''
      },
      errors: {} // 接收错误信息
    }
  },
  computed: {
    isLogin () {
      return this.$route.name === 'login'
    }
  },
  methods: {
    async onSubmit () {
      try {
        const res:any = this.isLogin ? await login({
          user: this.user
        }) : await register({
          user: this.user
        })
        this.$store.commit('setUser', res.user)
        // 为了防止刷新页面数据丢失
        Cookie.set('user', res.user)
        this.isLogin ? this.$router.push('/') : this.$router.push('/login')
      } catch (error) {
        this.errors = error.response.data.errors
      }
    }
  }
})
</script>

    <style />
  </div>
</template></div>
